Phylogeography of the endemic Gymnocypris chilianensis (Cyprinidae): Sequential westward colonization followed by allopatric evolution in response to cyclical Pleistocene glaciations on the Tibetan Plateau

	Phylogeography of the endemic Gymnocypris chilianensis (Cyprinidae): Sequential westward colonization followed by allopatric evolution in response to cyclical Pleistocene glaciations on the Tibetan Plateau
	Zhao, Kai 2; Duan, Ziyuan 1,3; Peng, Zuogang 4; Gan, Xiaoni 1; Zhang, Renyi 2; He, Shunping 1; Zhao, Xinquan 2
刊名	molecular phylogenetics and evolution
	2011-05-01
卷号	59 期号:2 页码:303-310
关键词	Mitochondrial control region and cytochrome b Schizothoracine fish Phylogeography Pleistocene glaciations Tibetan Plateau
ISSN号	1055-7903
中文摘要	the schizothoracine gymnocypris chilianensis is restricted to the shiyang, ruoshui and shule rivers, listed from east to west, along the northeast edge of the tibetan plateau. this distribution provides a valuable system to test hypotheses about postglacial colonization. we used mitochondrial dna sequence data (a control region and the cytochrome b gene; 1894 bp) to assess the phylogeographic structure of this species based on 278 specimens sampled from throughout the species' entire geographical range. we found three lineages corresponding geographically to the three rivers, suggesting three independent glacial differentiation centers within the northeast edge of the tibetan plateau. the phylogenetic analysis suggested that the shiyang river population forms a lineage that separated from the other populations of g. chilianensis at the basal phylogenetic split within this species. the molecular data further demonstrated a clear pattern of decreasing genetic diversity from the eastern shiyang river towards the central ruoshui river and western shule river lineages, a pattern consistent with sequential western colonization. we therefore propose a phylogeographic scenario for g. chilianensis of a gradual westerly expansion from the shiyang river population along the northeast edge of the tibetan plateau, with subsequent allopatric evolution at approximately 0.37 and 0.05 million years ago (ma), through at least two glacial maxima. together with the genetic evidence reported in other species, our findings suggest that this common biogeographic pattern emphasizes the importance of the northeastern edge region of the tibetan plateau as a hotspot of genetic diversity for some taxa. (c) 2011 elsevier inc. all rights reserved.
英文摘要	the schizothoracine gymnocypris chilianensis is restricted to the shiyang, ruoshui and shule rivers, listed from east to west, along the northeast edge of the tibetan plateau. this distribution provides a valuable system to test hypotheses about postglacial colonization. we used mitochondrial dna sequence data (a control region and the cytochrome b gene; 1894 bp) to assess the phylogeographic structure of this species based on 278 specimens sampled from throughout the species' entire geographical range. we found three lineages corresponding geographically to the three rivers, suggesting three independent glacial differentiation centers within the northeast edge of the tibetan plateau. the phylogenetic analysis suggested that the shiyang river population forms a lineage that separated from the other populations of g. chilianensis at the basal phylogenetic split within this species. the molecular data further demonstrated a clear pattern of decreasing genetic diversity from the eastern shiyang river towards the central ruoshui river and western shule river lineages, a pattern consistent with sequential western colonization. we therefore propose a phylogeographic scenario for g. chilianensis of a gradual westerly expansion from the shiyang river population along the northeast edge of the tibetan plateau, with subsequent allopatric evolution at approximately 0.37 and 0.05 million years ago (ma), through at least two glacial maxima. together with the genetic evidence reported in other species, our findings suggest that this common biogeographic pattern emphasizes the importance of the northeastern edge region of the tibetan plateau as a hotspot of genetic diversity for some taxa. (c) 2011 elsevier inc. all rights reserved.
WOS标题词	science & technology ; life sciences & biomedicine
类目[WOS]	biochemistry & molecular biology ; evolutionary biology ; genetics & heredity
研究领域[WOS]	biochemistry & molecular biology ; evolutionary biology ; genetics & heredity
关键词[WOS]	mtdna variation ; climate-change ; north-america ; qinghai ; quaternary ; teleostei ; expansion ; uplift ; diversification ; biogeography
收录类别	SCI
语种	英语
WOS记录号	WOS:000290358800006
公开日期	2011-12-13
内容类型	期刊论文
源URL	[http://ir.nwipb.ac.cn//handle/363003/1548]
专题	西北高原生物研究所_中国科学院西北高原生物研究所
作者单位	1.Chinese Acad Sci, Inst Hydrobiol, Lab Fish Phylogenet & Biogeog, Wuhan 430072, Peoples R China 2.Chinese Acad Sci, NW Plateau Inst Biol, Key Lab Adaptat & Evolut Plateau Biota AEPB, Xining 810001, Peoples R China 3.Chinese Acad Sci, Inst Genet & Dev Biol, Beijing 100101, Peoples R China 4.Southwest Univ, Sch Life Sci, Key Lab Freshwater Fish Resources Reprod & Dev, Key Lab Aquat Sci Chongqing,Minist Educ, Chongqing 400715, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Kai,Duan, Ziyuan,Peng, Zuogang,et al. Phylogeography of the endemic Gymnocypris chilianensis (Cyprinidae): Sequential westward colonization followed by allopatric evolution in response to cyclical Pleistocene glaciations on the Tibetan Plateau[J]. molecular phylogenetics and evolution,2011,59(2):303-310.
APA	Zhao, Kai.,Duan, Ziyuan.,Peng, Zuogang.,Gan, Xiaoni.,Zhang, Renyi.,...&Zhao, Xinquan.(2011).Phylogeography of the endemic Gymnocypris chilianensis (Cyprinidae): Sequential westward colonization followed by allopatric evolution in response to cyclical Pleistocene glaciations on the Tibetan Plateau.molecular phylogenetics and evolution,59(2),303-310.
MLA	Zhao, Kai,et al."Phylogeography of the endemic Gymnocypris chilianensis (Cyprinidae): Sequential westward colonization followed by allopatric evolution in response to cyclical Pleistocene glaciations on the Tibetan Plateau".molecular phylogenetics and evolution 59.2(2011):303-310.